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NOTE: Point your mouse to the link and click, it should play using windows media player. If the movie cuts off short then you will have to use your right mouse button and click. Choose save as and save it to your computer to play, This way you can see the complete pass.
Our New Project:
After the DNI Drags. Came back and pulled the engine. Tore apart and did find that all 16 valves were bent, and had one burned piston. Sent block, crank, and rods off to the machine shop to be checked. All checked out to be good. I listed all of my induction system on eBay and sold it. That included my carbs, fuel line, carb adapter plate, linkage, blower scoop, fuel log. Called Good Vibrations (http://www.goodvibesracing.com) and had them quote me a complete setup for blown alky. After talking to them I found out I needed to increase my static compression ratio from 8.5 to at least 10.5. Also after talking to Isky I found out my new blower cam with a centerline of 110 would not work for alky. Had to order another camshaft, the same specs as the gas one but with a 114 centerline. The grind number is bds-4500-r. Below is the specs. Note this is the gas cam specs, all that is different is the lobe centerline which is now 114.
Had to run Jerry's Dart230 heads, they have been cut to 46cc combusting chambers. This would bump my static compression to 10.5 with out having to change out my pistons. Had the head cut for receiver groves since my block is O-Ringed. I plan on using 30 thousands copper head gaskets. Did find out why we bent the valves. When running forced induction ( NOS, Turbo, Blower) when you preload the valve springs you have to give them some extra seat pressure because of boost trying to open them while they are closed. Made a few calls and did some research on the web. I ordered a book called ( Fuel Injection Racing Secrets ) By Bob Szabo. When I called to place the order the author Bob Szabo answered the phone, so I was able to ask specific questions for my application. He turned me on to a guy named Jim Rayfield who works for Enderle fuel injection. I called Jim and he was full of helpful information. I also met up with a guy named Bob Massey, he is a local drag racer who owns a SBC Blown Alky Dragster. Went to the track with him and watched what he did between rounds and was able to talk shop with him. He runs Alky on a Big SBC with a 14-1 blower setup. I did a lot of home work before doing this venture since we have never messed with Alky. While I was at the track with Bob Massey I met his tuner Mike Kawalski he owns ( Rods -n- Rides ) which builds dragsters and such. He had a used Bird Catcher for sell and I bought it. I called Good Vibrations and had to order some replacement lines and new jets for the Bird Catcher, it was setup a little different for another application. It does have the standard barrel valve for Alky. I went ahead and ordered my timing chain cover for the fuel pump drive and the front drive coupler, also wanted to set the pulleys back closer to the engine so I had to order new bolts and spacers. Jim Maher and Kasey Smith were very helpful from Good Vibrations. Jim Rayfield from Enderle, after giving him my specs set me up with a pretty good configuration with main bypass jets size and also the Hat injector sizes. Below are some pictures of the motor in the car, I was trial fitting everything, making the linkage cable etc...
With the engine in the car I was able to make my throttle linkage, measure to see what length size fuel extension I would need. See about mounting the fuel cell etc. I ordered a fuel call 5 gallon vertical, a 5.5 inch fuel pump extension, the jets the Jim Rayfield recommended and also a longer 7" linkage rod, the Enderle 80-A1 fuel pump, 3-way shut off valve with a 72" fuel shut off cable, with mounting kit, fuel block, fuel filter, fittings AN12 for fuel pump, AN6 for the return fuel setup, and blower restraints. Then I mocked it all up. I did fine there was just no where to mount the fuel cell, unless I wanted it sticking out of the hood. So I had to pull out my Tig welder and make a custom fuel cell, it has a capacity of 6.5 gallons. Then I also made a front impact safety bar just in case. Below are some pictures of fitting everything. I mounted the blower restraints and made Braided hoses for inlets and outlets. Removed the fuel tank and sealed it. Installed fuel tank foam, and remounted it. Here are my engine specs: Chevrolet 350 4 bolt main stock production block. Callies Stealth Stock stroke Crankshaft, Iron Eagle rods 5.70 length H-Beam, Isky BDS-4500-R Alky camshaft 114 center line, Cloyes true roller timing set, TRW forged Blower pistons reverse dome notched with larger valve reliefs because of the lager intake vales, Total seal piston rings, Cleavite race main bearings, and rod bearings Std / Std, Melling High volume oil pump, Dart 230 heads with 2.08 intake and 1.60 exhaust, 230cc intake runners, angle plug, O-Ringed block with receiver groves cut in heads, 30 thousand copper SCE copper head gaskets, ARP Main and head studs, 7/16 ARP Rocker studs, Competion Eng. Pro Magnum 1.6 roller rockers, stud girdle. BDS 6-71 blower, reworked and clearance for Alky from Littlefield blowers, Stock BDS blower intake with Dart Transition plates. Not sure if the stock production block will hold up, but we will see. Here is a video of us firing it up. The power and torque are quite impressive. It will probably tear the Z-Car up. We will have to see.
We plan on going to the drag strip in a couple of weeks to make some shakedown passes, we will see what the stock suspension can handle. Wish us luck....
Until next time.
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